ELECTRIC MOTOR CONTROL DEVICE Russian patent published in 2013 - IPC H02P21/12 H02P27/06 H02P27/08 H02M7/527 B60L9/12 

FIELD: electrical engineering.

SUBSTANCE: control device for an electric motor with rotor on permanent magnets and stator includes: inverter with rectangular wave which applies voltage with rectangular wave to the motor stator for excitation of the electric motor; voltage conversion unit which increases or decreases output voltage of direct-current source and applies this voltage to the inverter with rectangular wave; electrical angle unit which receives an electrical angle value for the rotor; and output voltage generation command unit which generates the output voltage command in order to transfer instructions to the voltage conversion unit on output of voltage synchronised with electrical angle, which amplitude has pulsations synchronous with change of the rotor electrical angle obtained by the electrical angle unit. In response to the command generated by output voltage generation command unit the voltage inverter unit increases or decreases output voltage of the direct-current source up to the value specified in the command and applies this voltage to the inverter with rectangular wave.

EFFECT: decrease of losses related to delay of the electric motor response.

17 cl, 19 dwg